xref: /llvm-project/libcxx/test/std/input.output/string.streams/stringstream/stringstream.cons/move.pass.cpp (revision b9a2658a3e8bd13b0f9e7a8a440832a95b377216)
1 //===----------------------------------------------------------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 
9 // <sstream>
10 
11 // template <class charT, class traits = char_traits<charT>, class Allocator = allocator<charT> >
12 // class basic_stringstream
13 
14 // basic_stringstream(basic_stringstream&& rhs);
15 
16 // XFAIL: FROZEN-CXX03-HEADERS-FIXME
17 
18 #include <sstream>
19 #include <cassert>
20 
21 #include "test_macros.h"
22 #include "operator_hijacker.h"
23 
24 int main(int, char**)
25 {
26     {
27         std::stringstream ss0(" 123 456 ");
28         std::stringstream ss(std::move(ss0));
29         assert(ss.rdbuf() != nullptr);
30         assert(ss.good());
31         assert(ss.str() == " 123 456 ");
32         int i = 0;
33         ss >> i;
34         assert(i == 123);
35         ss >> i;
36         assert(i == 456);
37         ss << i << ' ' << 123;
38         assert(ss.str() == "456 1236 ");
39     }
40     {
41       std::basic_stringstream<char, std::char_traits<char>, operator_hijacker_allocator<char> > ss0(" 123 456 ");
42       std::basic_stringstream<char, std::char_traits<char>, operator_hijacker_allocator<char> > ss(std::move(ss0));
43       assert(ss.rdbuf() != nullptr);
44       assert(ss.good());
45       assert(ss.str() == " 123 456 ");
46       int i = 0;
47       ss >> i;
48       assert(i == 123);
49       ss >> i;
50       assert(i == 456);
51       ss << i << ' ' << 123;
52       assert(ss.str() == "456 1236 ");
53     }
54 #ifndef TEST_HAS_NO_WIDE_CHARACTERS
55     {
56         std::wstringstream ss0(L" 123 456 ");
57         std::wstringstream ss(std::move(ss0));
58         assert(ss.rdbuf() != nullptr);
59         assert(ss.good());
60         assert(ss.str() == L" 123 456 ");
61         int i = 0;
62         ss >> i;
63         assert(i == 123);
64         ss >> i;
65         assert(i == 456);
66         ss << i << ' ' << 123;
67         assert(ss.str() == L"456 1236 ");
68     }
69     {
70       std::basic_stringstream<wchar_t, std::char_traits<wchar_t>, operator_hijacker_allocator<wchar_t> > ss0(
71           L" 123 456 ");
72       std::basic_stringstream<wchar_t, std::char_traits<wchar_t>, operator_hijacker_allocator<wchar_t> > ss(
73           std::move(ss0));
74       assert(ss.rdbuf() != nullptr);
75       assert(ss.good());
76       assert(ss.str() == L" 123 456 ");
77       int i = 0;
78       ss >> i;
79       assert(i == 123);
80       ss >> i;
81       assert(i == 456);
82       ss << i << ' ' << 123;
83       assert(ss.str() == L"456 1236 ");
84     }
85 #endif
86 
87   return 0;
88 }
89